Richest newcomer is founder, CEO of London-listed oil-and-gas outfit Indus Gas, in which he has more than two-thirds stake.

Richest newcomer is founder, CEO of London-listed oil-and-gas outfit Indus Gas, in which he has more than two-thirds stake. Also chairs Focus Energy, the Indian operating arm of Indus Gas that owns hydrocarbon block in western state of Rajasthan. Got start in family's shoe business making sneakers for Reebok. Founded iEnergizer, a business-process outsourcer.